WS2812 全彩LED 燈條測試研發紀錄

 目的：測試 WS2812 LED  PCB

名稱	版本	備註
Arduino IDE	2.3.2
FastLED	3.6.0
開發板PICO RP2040	RP2040-Zero
Arduino Mbed OS RP2040	4.1.1	這個專案是選擇Arduino的板子才能支援多燈條的設定
Raspberry Pi PICO RP2040	3.7.1

板子的選擇如下：

工具🡪開發板🡪Arduino Mbed OS RP2040 borads 🡪 Raspberry Pi Pico

這個選項很重要要非常小心注意

這個是控制四塊PCB的程式

可以成功的運行

如果選擇Raspberry Pi Pico RP2040 如下圖：

同樣的程式compiler 會出現下列錯誤：

原因不明可能是Fastled library 與Raspberry Pi Pico 的底層有不相容吧！！

I/O PORT 規劃表

項次	Arduino 腳位名稱	程式定義名稱	I/O	動作	說明
1	GPIO 0	保留
2	GPIO1	保留
3	GPIO2	SMART_LEDS	O	clk	J2.2
4	GPIO3	SPI_CLK	O	clk	J4.2
5	GPIO4	SDA	IO		OLED SDA
6	GPIO5	SCL	IO		OLED SCL
7	GPIO6	SPI_MOSI	O	clk	J4.4
8	GPIO7	nSPI_MISO	I	clk	J4.5
9	GPIO8	SPI_STB	O	clk	J4.7
10	GPIO9	nLED_OE	O	clk	J4.8
11	GPIO10	MUSSEL_0	O	clk	J4.10
12	GPIO11	MUSSEL_1	O	clk	J4.11
13	GPIO12	MUSSEL_2	O	clk	J4.12
14	GPIO13
15	GPIO14
16	GPIO15
17	GPIO16
18	GPIO17
19	GPIO18
20	GPIO19
21	GPIO20
22	GPIO21
23	GPIO22
24	GPIO23	板子上的WS2812B LED	O		保留
25	GPIO24	板子上的USER 按鍵	IO		保留
26	GPIO25	板子上的LED	O		保留
27	GPIO26	ADC0	I		ADC_LEFT J4.16
28	GPIO27	ADC 1	I
29	GPIO28	ADC 2	I
30	GPIO29	ADC 3	I

WS2812 全採LED驅動下面是我寫的範例程式

/// @file    ArrayOfLedArrays.ino

/// @brief   Set up three LED strips, all running from an array of arrays

/// @example ArrayOfLedArrays.ino

// ArrayOfLedArrays - see https://github.com/FastLED/FastLED/wiki/Multiple-Controller-Examples for more info on

// using multiple controllers.  In this example, we're going to set up three NEOPIXEL strips on three

// different pins, each strip getting its own CRGB array to be played with, only this time they're going

// to be all parts of an array of arrays.

/*

2024/03/12

程式設計 : 李進衛

發展板： RP2040

機種：  LED測試程式

版本：1.0

根據Fastled library 範例修改以符合治具測試使用

這個程式compiler的板子選項要特別注意

在ArduinoIDE中：工具-->開發板-->Arduino Mbed OS RP2040 borads-->Raspberry Pi Pico

才能compiler成功

LED的亮度可以考慮使用VR調節但是這個程式我沒有加入這個功能，開發板的ADC我有預留出來

視狀況加入這個亮度的調節功能

*/

#include <FastLED.h>

#define NUM_STRIPS 4    //四聯板

#define NUM_LEDS_PER_STRIP 60  //每一片板子的LED數

#define BRIGHTNESS 50   //2024/03/07 by 李進衛 modify 60

#define delaytime 25  //50 // delay time

CRGB leds[NUM_STRIPS][NUM_LEDS_PER_STRIP]; //開二維陣列處理LED

// For mirroring strips, all the "special" stuff happens just in setup.  We

// just addLeds multiple times, once for each strip

void setup() {

  // tell FastLED there's 60 NEOPIXEL leds on pin 3

  FastLED.addLeds<WS2812B, 3, GRB>(leds[0], NUM_LEDS_PER_STRIP);

  // tell FastLED there's 60 NEOPIXEL leds on pin 4

  FastLED.addLeds<WS2812B, 4, GRB>(leds[1], NUM_LEDS_PER_STRIP);

  // tell FastLED there's 60 NEOPIXEL leds on pin 5

  FastLED.addLeds<WS2812B, 5, GRB>(leds[2], NUM_LEDS_PER_STRIP);

  // tell FastLED there's 60 NEOPIXEL leds on pin 6

  FastLED.addLeds<WS2812B, 6, GRB>(leds[3], NUM_LEDS_PER_STRIP);

}

void loop() {

  // This outer loop will go over each strip, one at a time

         FastLED.setBrightness(BRIGHTNESS);

  for(int x = 0; x < NUM_STRIPS; x++) {

    // This inner loop will go over each led in the current strip, one at a time

    for(int i = 0; i < NUM_LEDS_PER_STRIP; i++) {

      leds[x][i] = CRGB::White; //Red;

      FastLED.show();

//      leds[x][i] = CRGB::Black;

      delay(delaytime);

    }

    for(int i = NUM_LEDS_PER_STRIP; i>=0; i--) {

      leds[x][i] = CRGB::Red;

      FastLED.show();

//      leds[x][i] = CRGB::Black;

      delay(delaytime);

    }

    for(int i = 0; i < NUM_LEDS_PER_STRIP; i++) {

      leds[x][i] = CRGB::Green; //Red;

      FastLED.show();

//      leds[x][i] = CRGB::Black;

      delay(delaytime);

    }

    for(int i = NUM_LEDS_PER_STRIP; i>=0; i--) {

      leds[x][i] = CRGB::Blue;

      FastLED.show();

//      leds[x][i] = CRGB::Black;

      delay(delaytime);

    }

  }

  

}